Home / 19,148.45-26,422.83-10,649.21

Finding the Fourth Proportional to 19,148.45, 26,422.83 and 10,649.21

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Solution

The fourth proportional to 19,148.45, 26,422.83 and 10,649.21 is: 14,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.45 : 26,422.83 = 10,649.21 : x
  2. Step 2: Convert to fraction form
    19,148.45/26,422.83 = 10,649.21/x
  3. Step 3: Cross multiply
    19,148.45x = 26,422.83 × 10,649.21
  4. Step 4: Simplify right side
    19,148.45x = 281,382,133.35
  5. Step 5: Solve for x
    x = 281,382,133.35/19,148.45
  6. Step 6: Final answer
    x = 14,694.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.